linux-kernel - Re: [PATCH v2] wifi: ath9k: don't allow to overwrite ENDPOINT0 attributes

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Date:   Tue, 16 May 2023 21:47:08 +0200
From:   Toke Høiland-Jørgensen <toke@...e.dk>
To:     Fedor Pchelkin <pchelkin@...ras.ru>
Cc:     Fedor Pchelkin <pchelkin@...ras.ru>, Kalle Valo <kvalo@...nel.org>,
        "David S. Miller" <davem@...emloft.net>,
        Eric Dumazet <edumazet@...gle.com>,
        Jakub Kicinski <kuba@...nel.org>,
        Paolo Abeni <pabeni@...hat.com>,
        linux-wireless@...r.kernel.org, netdev@...r.kernel.org,
        linux-kernel@...r.kernel.org,
        Takeshi Misawa <jeliantsurux@...il.com>,
        Alexey Khoroshilov <khoroshilov@...ras.ru>,
        lvc-project@...uxtesting.org,
        syzbot+b68fbebe56d8362907e8@...kaller.appspotmail.com
Subject: Re: [PATCH v2] wifi: ath9k: don't allow to overwrite ENDPOINT0
 attributes

Fedor Pchelkin <pchelkin@...ras.ru> writes:

> A bad USB device is able to construct a service connection response
> message with target endpoint being ENDPOINT0 which is reserved for
> HTC_CTRL_RSVD_SVC and should not be modified to be used for any other
> services.
>
> Reject such service connection responses.
>
> Found by Linux Verification Center (linuxtesting.org) with Syzkaller.
>
> Fixes: fb9987d0f748 ("ath9k_htc: Support for AR9271 chipset.")
> Reported-by: syzbot+b68fbebe56d8362907e8@...kaller.appspotmail.com
> Signed-off-by: Fedor Pchelkin <pchelkin@...ras.ru>

Acked-by: Toke Høiland-Jørgensen <toke@...e.dk>